EP3070044A1 - Hoisting systems and methods - Google Patents
Hoisting systems and methods Download PDFInfo
- Publication number
- EP3070044A1 EP3070044A1 EP15382130.1A EP15382130A EP3070044A1 EP 3070044 A1 EP3070044 A1 EP 3070044A1 EP 15382130 A EP15382130 A EP 15382130A EP 3070044 A1 EP3070044 A1 EP 3070044A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blade
- hub
- support
- hoisting system
- supported
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 claims abstract description 48
- 238000010168 coupling process Methods 0.000 claims abstract description 48
- 238000005859 coupling reaction Methods 0.000 claims abstract description 48
- 210000005069 ears Anatomy 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims description 13
- 230000001012 protector Effects 0.000 claims description 12
- 230000001965 increasing effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/185—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use erecting wind turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/40—Arrangements or methods specially adapted for transporting wind motor components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/60—Assembly methods
- F05B2230/61—Assembly methods using auxiliary equipment for lifting or holding
- F05B2230/6102—Assembly methods using auxiliary equipment for lifting or holding carried on a floating platform
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/95—Mounting on supporting structures or systems offshore
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present disclosure relates to hoisting systems configured to mount a hub on top of a tower to form a wind turbine, and to methods of mounting a hub on top of a tower to form a wind turbine.
- Wind turbines are commonly used to supply electricity into the electrical grid.
- Wind turbines generally comprise a rotor with a rotor hub and a plurality of blades.
- the rotor is set into rotation under the influence of the wind on the blades.
- the rotation of a rotor shaft drives a generator rotor either directly (“directly driven") or through the use of a gearbox.
- the gearbox (if present), the generator and other systems are usually mounted in a nacelle on top of a wind turbine tower.
- the tower When wind turbines are erected, the tower is generally constructed first and placed upon a foundation. Then the nacelle, typically containing the generator and the gearbox (if present), is usually mounted on top of the tower. Then, the hub may be hoisted and mounted. Finally, the blades are hoisted one by one from a ground level towards the rotor hub and mounted therein. In an alternative method, one or more blades may be pre-assembled with the hub when lifting the hub. Depending on the wind turbine configuration, the combination of nacelle and hub may be hoisted to the top of the tower, after which the blades are mounted to the hub.
- the blades may be installed in a variety of ways, e.g. in a substantially vertical manner or substantially horizontally or at other inclined angles. Particularly, in offshore wind turbines, mounting a blade from above the hub may be very complicated, or at least require an very large, high capacity crane and jack-up barge. Such an installation method may thus be very expensive and depending on the depth of the sea may simply be impossible.
- the prevailing wind speed has to be below a predetermined value.
- the period of time depends on the expected length of the installation operation and a safety factor to be taken into account.
- the torque may be delivered by using the gearbox (when present) with an external power supply for rotating the rotor.
- Such a system may be used in combination with a locking pin for maintaining the rotor in a desired position for installation. This is not possible in case of directly driven wind turbines as no gearbox is provided between rotor and generator. Even though the generator may be suitable for being operated as a motor, it will generally not be able to deliver the required torque to rotate the hub when the hub is unbalanced, i.e. when at least one but not all the blades have been mounted.
- a hoisting system for mounting a hub on top of a tower to form a wind turbine, the hub carrying a first blade and a second blade forming a bunny ears configuration and a third blade.
- the hoisting system comprises a first crane, a blade support, and a hub-blade coupling device.
- the first crane is configured to pull up the hub from a ground level to the top of the tower.
- the hub may be initially attached to a nacelle (at ground level), in which case the first crane may be understood as being configured to pull up both the nacelle and hub as a single body to the top of the tower.
- the hub may alternatively not be initially attached to a nacelle (at ground level), in which case the first crane may be understood as being configured to pull up only the hub for its coupling with a nacelle that may have been previously mounted on top of the tower.
- the blade support is configured to support the third blade at a supported blade portion.
- the hub-blade coupling device is configured to assist in coupling a root portion of the third blade to a coupling portion of the hub.
- the hub-blade coupling device comprises a hub mount structure, a blade mount structure, and a connector rotatably coupling said structures.
- the hub mount structure is configured to be removably fixed to the hub.
- the blade mount structure is configured to be removably fixed to the third blade at or near the root portion of the third blade.
- the connector may comprise e.g. a hinge.
- a nacelle mount structure configured to be removably fixed to the nacelle may be used instead of the hub mount structure with same or similar effects.
- the blade support may be either comprised in the hub-blade (or nacelle-blade) coupling device or external to the hub-blade (or nacelle-blade) coupling device.
- the first crane and the blade support may be configured to cooperate for causing an additional movement of the third blade during at least part of or after the pulling up of the hub.
- This additional movement may be such that an increasing difference between height of the root portion and height of the supported blade portion is caused, so that the blade mount structure rotates with respect to the hub mount structure.
- Said rotation may be such that the third blade moves towards a substantially vertical position, in which the root portion of the third blade and the coupling portion of the hub (e.g. a mounting flange) are facing each other.
- the third blade may be pulled up in such a way that its root portion is coupled with the coupling portion of the hub.
- the pulling up of the third blade may be performed by using a lift system based on e.g. hydraulic pistons, which may be comprised in the blade mount structure or the hub mount structure.
- this lift system may be external to the hoisting system.
- the root portion of the third blade may be fixed to the coupling portion of the hub by using suitable fastening means, such as e.g. screws, bolts, etc.
- the hub structure to be hoisted may be initially formed, for example, with the third blade lying on deck level in offshore applications and with the other two blades erected forming the "bunny ears" configuration.
- the blade support may comprise a cable-based support system such as e.g. a second crane or a tensor system.
- the second crane may be configured to hold up the third blade at the supported blade portion at a height such that, in use, cooperation of the first and the second crane may cause the aforementioned additional movement of the third blade (towards vertical position) during at least part of the pulling up of the hub.
- the tensor system may comprise a cable and a cable regulator.
- the cable may connect the hub mount structure with the supported blade portion of the third blade in a tensed manner, such that the third blade is held up by the tensed cable.
- the cable regulator may be configured to extend the tensed cable and, therefore, causing lowering of the third blade at the supported blade portion during at least part or after the pulling up of the hub. This lowering (by the tensor system) along with the pulling up of the hub (by the first crane) may cause the pursued additional movement of the third blade towards vertical position.
- the hoisting system may further comprise a sling.
- Said sling may be configured to hold the supported blade portion of the third blade and to be attached to an end of the cable in such a way that, in use, the third blade is held up by the cable at the supported blade portion with the cable attached to the sling.
- the blade support may comprise a pivoting support system.
- This pivoting support system may comprise a support base configured to cause pivoting of the third blade at the supported blade portion on the support base during at least part of the pulling up of the hub. This pivoting may be such that the target additional movement of the third blade towards vertical position is caused.
- cable-based support system and pivoting support system may co-exist and cooperate in causing the target additional movement of the third blade (towards vertical position).
- the pivoting support system may further comprise a support platform pivotally arranged on the support base, such that joint pivoting of the third blade at the supported blade portion and the support platform is caused during at least part of the pulling up of the hub.
- This joint pivoting of the blade and the support platform may be such that the target additional movement of the third blade (towards vertical position) is caused.
- An aspect of having such a support platform may be that the third blade is supported in a more reliable/equilibrated manner at the supported blade portion by the blade support.
- the blade support may be sized in such a way that, when the hub is initially at the ground/deck level, the supported blade portion of the third blade is in a position more elevated than the root portion of the third blade.
- the hub structure to be hoisted (constituted by e.g. nacelle, hub, blades, hub-blade coupling device, etc.) may occupy less deck/ground space. Therefore, larger amounts of hub structures (to be hoisted) may be arranged on the ground/deck. In the case of offshore wind turbines, it may be especially advantageous because larger amounts of hub structures (to be hoisted) may be transported on a same vessel to corresponding offshore locations.
- Another aspect of initially having the supported blade portion more elevated than the root portion of the third blade is that, when the third blade is arranged overhanging the deck, negative effects of the surf on the third blade may be avoided or attenuated, and transportation restrictions may be reduced or avoided.
- Figures 1a - 1c show a hoisting system configured to mount a nacelle 107 and hub 108 on top of a tower to form a wind turbine, according to an example.
- the hub 108 is shown carrying a first blade 103 and a second blade 104 forming a bunny ears configuration, and a third blade 105.
- the hoisting system may comprise a first crane 100 with a cable 102 for pulling up the nacelle 107 and hub 108 from a ground level 114 to the top of the tower.
- the ground level may be a deck level 114 of a vessel for transporting wind turbine parts to corresponding offshore locations.
- the hoisting system may further comprise a blade support and a hub-blade coupling device.
- the blade support may comprise a second (or auxiliary) crane 101.
- the hub-blade coupling device may be configured to assist in coupling a root portion 115 of the third blade 105 to a coupling portion 116 of the hub 108.
- the hub-blade coupling device may comprise a hub mount structure 109, a blade mount structure 110, and a hinge 118.
- the hub mount structure 109 may be configured to be removably fixed to the hub 108.
- the blade mount structure 110 may be configured to be removably fixed to the third blade 105 at or near the root portion 115 of the third blade 105.
- the hinge 118 may be configured to rotatably connect or couple the hub mount structure 109 and the blade mount structure 110.
- the second crane 101 may have a cable 106 configured to hold up the third blade 105 at a blade portion 117 through e.g. a sling 111.
- the first crane 100 and the second crane 101 may cooperate in such a way that an additional movement of the third blade 105 is caused during at least part of or after the pulling up of the nacelle 107 and hub 108.
- Said additional movement of the third blade 105 may be such that a difference 121 between height 119' of the root portion 115 and height 120' of the blade portion 117 held by the sling 111 is increased (see Figure 1c ).
- Said additional movement of the third blade 105 may therefore cause rotation of the blade mount structure 110 around the hinge 118, i.e. with respect to the hub mount structure 109. And said rotation may cause the third blade 105 to move towards a substantially vertical position in which the root portion 115 of the third blade 105 and the coupling portion 116 of the hub 108 are facing each other.
- a hub structure to be hoisted (constituted by nacelle 107, hub 108, blades 103 - 105, hub-blade coupling device, etc.) may be initially formed with the nacelle 107 arranged on a pedestal 113 (or similar) and with the third blade 105 lying on the deck (or ground) level 114. Then, the first crane 100 and the second crane 101 may cooperate to elevate the hub structure (to be hoisted) to a position as the one shown in Figure 1b , in which height 119 of the root portion 115 and height 120 of the blade portion 117 held by the sling 111 may substantially coincide.
- the second (or auxiliary) crane 101 may be operated to lower the third blade 105 at the blade portion 117 (held by the sling 111) in such a way that a difference 121 between height 119' of the root portion 115 and height 120' of the blade portion 117 increases, as shown in Figure 1c .
- the second crane 101 may simply hold up the third blade 105 at the blade portion 117 (held by the sling 111) at a fixed height 120 while the first crane 100 pulls up the hub structure (to be hoisted), such that the same effect (increasing difference 121 of heights) is obtained.
- Pulling up of the hub structure (to be hoisted) by the first crane 100 may comprise a horizontal component in such a way that, as shown in Figure 1c , the hub structure is approached towards the second crane 101. This way, movement of the third blade 105 towards its target vertical arrangement is facilitated.
- the third blade 105 When the third blade 105 has reached a maximum inclination depending on the configuration of the cranes 100, 101, the third blade 105 may be released from the second crane 101 in such a way that the third blade 105 may move (or fall) by gravity to the pursued vertical position.
- the hub-blade coupling device may be configured to avoid said fall of the third blade 105.
- the hub-blade coupling device may further comprise an auxiliary drive system aimed at controlling the movement of the third blade 105 from the maximum inclination position to the vertical position.
- This drive system may comprise e.g. one or more cables 112 configured to connect the hub mount structure 109 and the blade mount structure 110, and a cable regulator system configured to control the length of the one or more cables 112. Damages on the blade 105 due to its movement towards the vertical position may be avoided with such a drive system.
- the second crane 101 may be configured to drop its cable 106 in a controlled manner when the nacelle 107 and hub 108 are at a certain height. Said dropping of the cable 106 may be performed in such a way that careful movement of the third blade 105 towards its vertical position can be achieved.
- FIGS 2a - 2c show a hoisting system configured to mount a nacelle 107 and hub 108 on top of a tower to form a wind turbine, according to a further example.
- This hoisting system is similar to the one described before.
- this hoisting system comprises a tensor system 200 instead of a second (or auxiliary) crane 101.
- This tensor system 200 may comprise a cable 201 with a sling 111 and a cable regulator (not shown).
- the cable 201 may be configured to connect in a tensed manner the hub mount structure 109 with a blade portion 117 of the third blade 105 held by the sling 111, such that the third blade 105 is held up at this blade portion 117 by the tensed cable 201.
- the cable regulator may be configured to extend the tensed cable 201 in such a way that the blade portion 117 (held by the sling 111) is lowered during at least part of or after the pulling up of the nacelle 107 and hub 108.
- This lowering of the third blade 105 at the blade portion 117 (held by the sling 111) may cause the pursued additional movement of the third blade 105 towards its vertical position.
- Figure 2a shows a hub structure to be hoisted (constituted by nacelle 107, hub 108, blades 103 - 105, hub-blade coupling device, etc.) in an initial position equal or similar to the one shown in Figure 1a , i.e. with the third blade 105 lying on the deck level 114.
- Figure 2b shows said hub structure elevated (by the first crane 100) such that the root portion 115 of the third blade 105 is at a height 203 from deck level 114.
- the third blade 105 is shown lowered (by the tensor system 200) at the blade portion 117 held by the sling 111 such that this blade portion 117 is at a height 204 from the deck level 114.
- a difference 205 between height 203 and height 204 is also indicated in Figure 2b .
- Figure 2c shows the nacelle 107 and hub 108 more elevated than in previous figure, and the third blade 105 more lowered at the blade portion 117 (held by the sling 111) than in previous figure. Therefore, difference 205' between height 203' of the root portion 115 and height 204' of the blade portion 117 held by the sling 111 is shown (in Figure 2c ) larger than difference 205 between height 203 of the root portion 115 and height 204 of this blade portion 117 (in Figure 2b ).
- the hoisting system of Figures 2a - 2c could further comprise a drive system with corresponding cable(s) 112 and cable(s) regulator, such as e.g. the one previously described with reference to Figures 1a - 1 c.
- This drive system may cooperate with the first crane 100 and tensor system 200 for moving the third blade 105 towards the target vertical position.
- the sling 111 may be made of a material with a suitable balance between softness and strength, such as e.g. suitable types of rubber or similar material, or a polymer-based textile.
- a material with a suitable balance between softness and strength such as e.g. suitable types of rubber or similar material, or a polymer-based textile.
- blade support slings made of nylon/polyester may be used for that purpose. This way, the third blade 105 may be held up at a blade portion 117 with the blade 105 suspended in a relatively strong and careful manner at the same time.
- the sling 111 may be positioned at a distance from the root portion 115 of the third blade 105 substantially equal to 2/3 of the length L of the third blade 105.
- the blade support may comprise a pivoting support system, such as e.g. the one illustrated in Figures 3a - 3b .
- This blade support 308 may comprise a support base 303 configured to be arranged directly on the deck (or ground) level 114 or on a pedestal 301 (or similar) arranged on the deck level 114. This way, the third blade 105 may be supported at a blade portion 117 in a pivoting manner.
- This support base 303 may thus be arranged in such a way that pivoting of the third blade 105 on the support base 303 may be caused during at least part of the pulling up of the nacelle 107 and hub 108.
- the third blade 105 may pivot on the support base 303 in such a way that the pursued additional movement of the third blade 105 (towards vertical position) is caused.
- this pivoting support system 308 may further comprise a support platform 302 pivotally arranged on the support base 303 in such a way that the third blade 105 and the support platform 302 jointly pivot on the support base 303 during at least part of the pulling up of the nacelle 107 and hub 108. Said joint pivoting may occur in such a way that the intended additional movement of the third blade 105 (towards vertical position) is caused.
- a hub structure to be hoisted (constituted by nacelle 107, hub 108, blades 103 - 105, hub-blade coupling device, etc.) may be initially formed with the nacelle 107 arranged on a pedestal 300 (or similar). Pedestals 300 and 301 may be used in order to achieve a balanced hub structure (to be hoisted).
- the third blade 105 may be arranged with blade portion 117 lying on the support platform 302, so that the third blade 105 is suitably arranged, e.g. substantially parallel to deck (or ground) level 114.
- the first crane 100 may initiate the pulling up of the hub structure in such a way that the third blade 105 and the support platform 302 jointly pivot on the support base 303, as shown in Figure 3b .
- This joint pivoting may occur in a manner that an increasing difference 305 is caused between height 306 of the root portion 115 and height 307 of the blade portion 117 that is supported on the support platform 302.
- the first crane 100 may be configured to pull up the formed hub structure while moving it towards a position substantially on the vertical of the support system 308. This way, the additional movement of the third blade 105 (towards its vertical arrangement) may be performed with the third blade 105 always supported on the support system 308 until the vertical position is achieved. Hence, movement (or fall) by gravity of the third blade 105 may be avoided in this case.
- the hoisting system may further comprise an auxiliary drive system.
- Said auxiliary drive system may have corresponding cable(s) 112 and cable(s) regulator, such as e.g. the one described with reference to Figures 1a - 1c , aimed at controlling the movement of the third blade 105 towards its vertical position. Damages on the blade 105 may thus be avoided with this drive system.
- Figures 4a - 4b show similar views to those of Figures 3a - 3b .
- the hub structure (to be mounted on top of the tower) is shown in Figures 4a - 4b arranged on the deck level 114 widthwise of the vessel 309. This widthwise arrangement may permit optimizing the space available on the deck 114, such that a larger amount of hub structures (to be mounted on top of a tower) may be transported on the vessel 309.
- Arranging a hub structure (to be mounted on top of the tower) widthwise of the vessel 309 may cause the third blade 105 to overhang the deck 114 as shown in Figures 4a - 4b .
- This overhanging of the third blade 105 may permit having a blade support 308 lower than in other configurations in which the third blade 105 does not overhang the deck 114. Therefore, the pedestal 301 (or similar piece) of Figures 3a - 3b may not be required in this case.
- FIG 5 schematically illustrates a hub structure to be hoisted (constituted by nacelle 107, hub 108, blades 103 - 105, hub-blade coupling device, etc.) by using a hoisting system according to a still further example.
- This hoisting system is similar to the ones shown in Figures 3a - 4b .
- the blade support 308 is sized in such a way that, when the hub structure (to be hoisted) is on deck level 114, the third blade 105 is supported by the blade support 308 with the third blade 105 inclined. This inclination may be such that the blade portion 117 of the third blade 105 that is supported on the blade support 308 is positioned more elevated than the root portion 115 of the third blade 105.
- Having the third blade 105 inclined as shown in Figure 5 may permit optimizing the space on the deck 114, so that larger quantities of hub structures (to be mounted on top of a tower) may be transported on the vessel 309. Another aspect is that negative effects of the surf on the third blade 105 may be avoided or attenuated when the third blade 105 overhangs the deck 114 because e.g. the hub structure (to be hoisted) is arranged widthwise of the vessel 309, as shown in Figures 4a - 4b .
- the hoisting system may further comprise a blade protector 304.
- the blade protector 304 may be configured to cover the blade portion 117 in such a way that the third blade 105 is supported on the blade support 308 at said blade portion 117 with at least part of the blade protector 304 stuck between the third blade 105 and the blade support 308.
- the blade protector 304 may be made of a material with suitable balance between softness and strength, such as e.g. suitable types of rubber or similar material. This way, the third blade 105 may be supported at the blade portion 117 with the blade 105 relatively strongly protected and retained at the same time.
- the blade portion 117 at which the third blade 105 is supported may extend to a greater or lesser extent at both sides of a blade region which is at a distance from the root portion 115 substantially equal to 2/3 of the length L of the third blade 105.
- Figures 6a - 6d schematically illustrate a hoisting system and a method of mounting a nacelle 107 and hub 108 on top of a tower by using said hoisting system, according to another example.
- the blade support may comprise a blade protector member 600, a platform member 601 and a rolling member 602.
- the blade protector member 600 may be configured to cover at least part of the blade portion 603 at which the third blade 105 is supported.
- the platform member 601 may be attached to the blade protector member 600 in such a way that the platform member 601 extends substantially parallel to a longitudinal axis 604 of the third blade 105 at least between the blade protector member 600 and a blade tip of the third blade 105.
- the rolling member 602 may be configured in such a way that its rolling is caused along the platform member 601 during at least part of the pulling up of the nacelle 107 and hub 108 (by the first crane 100). The rolling member 602 may thus roll between the deck 114 and the platform member 601 in such a way that the additional movement of the third blade 105 towards its vertical position is caused.
- the first crane 100 may initiate the pulling up of the formed hub structure. This pulling up may be performed in such a manner that the rolling member 602 rolls between the deck 114 and the platform member 601 such that a motion sequence as the one illustrated from Figure 6b to Figure 6d may be caused.
- the rolling of the rolling member 602 may occur in such a manner that an increasing difference 605 between height 606 of the root portion 115 and height 607 of the blade portion 603 is caused.
- the hoisting system of Figures 6a - 6d may be configured in such a way that pulling up of the hub structure by the first crane 100 may comprise a horizontal component in such a way that, as shown in Figures 6b - 6d , the hub structure is hoisted with the third blade 105 always supported on the rolling member 602 until its vertical arrangement is achieved. This way, movement (or fall) by gravity of the third blade 105 may be avoided.
- an auxiliary drive system may be used.
- This drive system may comprise corresponding cable(s) 112 and cable(s) regulator, such as e.g. the one described in previous figures, aimed at controlling the movement of the third blade 105 towards its vertical position. Damages on the blade 105 may thus be avoided with this drive system, in cooperation or not with the above manner of causing the blade 105 to achieve its vertical position with the blade 105 always supported on the roller member 602.
- the blade portion 603 at which the third blade 105 is supported may extend from 2/3 of the length L of the third blade 105 to at or near the blade tip.
- the hub 108 is shown initially attached to a nacelle 107 and both (nacelle 107 and hub 108) are pulled up as a single body by the first crane 100 to the top of the tower. In alternative examples, only the hub 108 may be pulled up by the first crane 100 for its coupling with a nacelle which may have been previously mounted on top of the tower.
- the blade mount structure 110 may comprise a lift system for pulling up the third blade 105 once the third blade 105 has reached the substantially vertical position. This way, coupling of the root portion 115 of the third blade 105 with the coupling portion 116 of the hub 108 may be caused.
- the lift system may be a telescopic system and/or may be based on one or more hydraulic pistons aimed at that end, for example.
- the lift system may be comprised in the hub mount structure 109.
- neither the blade mount structure 110 nor the hub mount structure 109 may comprise such a lift system, in which case an external lift system may be used instead.
- the root portion 115 of the third blade 105 can be fixed to the coupling portion 116 of the hub 108 by using suitable fastening means, such as e.g. screws, bolts, etc.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
Description
- The present disclosure relates to hoisting systems configured to mount a hub on top of a tower to form a wind turbine, and to methods of mounting a hub on top of a tower to form a wind turbine.
- Modern wind turbines are commonly used to supply electricity into the electrical grid. Wind turbines generally comprise a rotor with a rotor hub and a plurality of blades. The rotor is set into rotation under the influence of the wind on the blades. The rotation of a rotor shaft drives a generator rotor either directly ("directly driven") or through the use of a gearbox. The gearbox (if present), the generator and other systems are usually mounted in a nacelle on top of a wind turbine tower.
- When wind turbines are erected, the tower is generally constructed first and placed upon a foundation. Then the nacelle, typically containing the generator and the gearbox (if present), is usually mounted on top of the tower. Then, the hub may be hoisted and mounted. Finally, the blades are hoisted one by one from a ground level towards the rotor hub and mounted therein. In an alternative method, one or more blades may be pre-assembled with the hub when lifting the hub. Depending on the wind turbine configuration, the combination of nacelle and hub may be hoisted to the top of the tower, after which the blades are mounted to the hub.
- The blades may be installed in a variety of ways, e.g. in a substantially vertical manner or substantially horizontally or at other inclined angles. Particularly, in offshore wind turbines, mounting a blade from above the hub may be very complicated, or at least require an very large, high capacity crane and jack-up barge. Such an installation method may thus be very expensive and depending on the depth of the sea may simply be impossible.
- It is known to hoist a complete rotor assembly, i.e. the hub with blades, and mount it to e.g. the nacelle. But in order to mount a complete rotor assembly, a large surface area is required, which is typically not available in the case of offshore wind turbines.
- It is further known to hoist and mount an incomplete rotor assembly on the nacelle, e.g. the hub with two blades and subsequently, hoisting and mounting the remaining blade. In these cases, the rotor with the two blades is normally mounted with the two blades pointing upwards, i.e. "bunny ears" configuration. There is thus no need for rotating the wind turbine rotor as the third blade could be vertically mounted from below.
- However, in order to be able to perform these rather complicated and time consuming installation steps, the prevailing wind speed has to be below a predetermined value. The period of time depends on the expected length of the installation operation and a safety factor to be taken into account.
- During certain seasons, windows of several hours in which the wind does not reach the predetermined maximum wind speed may not be available very often. In practice, this may mean that personnel and maintenance equipment, including e.g. expensive cranes and jack-up barges, may be in stand-by during days or even weeks. This may represent an enormous cost.
- It is known to mount each of the plurality of blades substantially horizontally or substantially vertically. This means that individual installation steps may require less time and may be performed at higher winds, thus increasing the time windows available for installation. However, such methods require rotation of the hub between the mounting of one blade and another. In order to correctly position the hub, torque is required for rotating the wind turbine rotor after mounting one blade in order to mount the next one. When not all blades have been mounted onto the hub, the hub is not balanced, so that the weight of one or more blades has to be carried upwards when rotating the hub. Application of a very high torque may therefore be necessary for rotating the hub.
- The torque may be delivered by using the gearbox (when present) with an external power supply for rotating the rotor. Such a system may be used in combination with a locking pin for maintaining the rotor in a desired position for installation. This is not possible in case of directly driven wind turbines as no gearbox is provided between rotor and generator. Even though the generator may be suitable for being operated as a motor, it will generally not be able to deliver the required torque to rotate the hub when the hub is unbalanced, i.e. when at least one but not all the blades have been mounted.
- It is an object of the present disclosure to provide systems and methods that at least partially reduce one or more of the aforementioned drawbacks, leading to improved methods of mounting a hub on top of a tower especially suitable for direct drive offshore wind turbines.
- In a first aspect, a hoisting system is provided for mounting a hub on top of a tower to form a wind turbine, the hub carrying a first blade and a second blade forming a bunny ears configuration and a third blade. The hoisting system comprises a first crane, a blade support, and a hub-blade coupling device. The first crane is configured to pull up the hub from a ground level to the top of the tower.
- The hub may be initially attached to a nacelle (at ground level), in which case the first crane may be understood as being configured to pull up both the nacelle and hub as a single body to the top of the tower. The hub may alternatively not be initially attached to a nacelle (at ground level), in which case the first crane may be understood as being configured to pull up only the hub for its coupling with a nacelle that may have been previously mounted on top of the tower.
- The blade support is configured to support the third blade at a supported blade portion. The hub-blade coupling device is configured to assist in coupling a root portion of the third blade to a coupling portion of the hub.
- The hub-blade coupling device comprises a hub mount structure, a blade mount structure, and a connector rotatably coupling said structures. The hub mount structure is configured to be removably fixed to the hub. The blade mount structure is configured to be removably fixed to the third blade at or near the root portion of the third blade. The connector may comprise e.g. a hinge. In alternative examples, a nacelle mount structure configured to be removably fixed to the nacelle may be used instead of the hub mount structure with same or similar effects.
- The blade support may be either comprised in the hub-blade (or nacelle-blade) coupling device or external to the hub-blade (or nacelle-blade) coupling device.
- The first crane and the blade support may be configured to cooperate for causing an additional movement of the third blade during at least part of or after the pulling up of the hub. This additional movement may be such that an increasing difference between height of the root portion and height of the supported blade portion is caused, so that the blade mount structure rotates with respect to the hub mount structure. Said rotation may be such that the third blade moves towards a substantially vertical position, in which the root portion of the third blade and the coupling portion of the hub (e.g. a mounting flange) are facing each other.
- Once the third blade is in the vertical position, it may be pulled up in such a way that its root portion is coupled with the coupling portion of the hub. The pulling up of the third blade may be performed by using a lift system based on e.g. hydraulic pistons, which may be comprised in the blade mount structure or the hub mount structure. Alternatively, this lift system may be external to the hoisting system.
- Once coupled, the root portion of the third blade may be fixed to the coupling portion of the hub by using suitable fastening means, such as e.g. screws, bolts, etc.
- With the proposed hoisting system, mounting a complete hub (with all the blades) on top of a tower may be performed with a single hoisting step, thereby reducing the time of the mounting operation. Hence, depending on the circumstances, shorter time periods of prevailing wind speed below a predetermined value may be required in comparison with prior art approaches based on e.g. multiple hoisting steps.
- Moreover, since the third blade is pulled up without being installed on the hub, a smaller surface area may be required on the ground or deck level to form the hub structure to be hoisted (constituted by e.g. nacelle, hub, blades, hub-blade coupling device, etc.). The hub structure (to be hoisted) may be initially formed, for example, with the third blade lying on deck level in offshore applications and with the other two blades erected forming the "bunny ears" configuration.
- According to examples, the blade support may comprise a cable-based support system such as e.g. a second crane or a tensor system. The second crane may be configured to hold up the third blade at the supported blade portion at a height such that, in use, cooperation of the first and the second crane may cause the aforementioned additional movement of the third blade (towards vertical position) during at least part of the pulling up of the hub.
- The tensor system may comprise a cable and a cable regulator. The cable may connect the hub mount structure with the supported blade portion of the third blade in a tensed manner, such that the third blade is held up by the tensed cable. The cable regulator may be configured to extend the tensed cable and, therefore, causing lowering of the third blade at the supported blade portion during at least part or after the pulling up of the hub. This lowering (by the tensor system) along with the pulling up of the hub (by the first crane) may cause the pursued additional movement of the third blade towards vertical position.
- In any example wherein the hoisting system comprises the second crane and/or the tensor system, the hoisting system may further comprise a sling. Said sling may be configured to hold the supported blade portion of the third blade and to be attached to an end of the cable in such a way that, in use, the third blade is held up by the cable at the supported blade portion with the cable attached to the sling.
- Alternatively or in addition to having the second crane or the tensor system, the blade support may comprise a pivoting support system. This pivoting support system may comprise a support base configured to cause pivoting of the third blade at the supported blade portion on the support base during at least part of the pulling up of the hub. This pivoting may be such that the target additional movement of the third blade towards vertical position is caused. In some configurations, cable-based support system and pivoting support system may co-exist and cooperate in causing the target additional movement of the third blade (towards vertical position).
- According to examples, the pivoting support system may further comprise a support platform pivotally arranged on the support base, such that joint pivoting of the third blade at the supported blade portion and the support platform is caused during at least part of the pulling up of the hub. This joint pivoting of the blade and the support platform may be such that the target additional movement of the third blade (towards vertical position) is caused. An aspect of having such a support platform may be that the third blade is supported in a more reliable/equilibrated manner at the supported blade portion by the blade support.
- In any of the pivoting support systems described before, the blade support may be sized in such a way that, when the hub is initially at the ground/deck level, the supported blade portion of the third blade is in a position more elevated than the root portion of the third blade.
- An aspect hereof is that the hub structure to be hoisted (constituted by e.g. nacelle, hub, blades, hub-blade coupling device, etc.) may occupy less deck/ground space. Therefore, larger amounts of hub structures (to be hoisted) may be arranged on the ground/deck. In the case of offshore wind turbines, it may be especially advantageous because larger amounts of hub structures (to be hoisted) may be transported on a same vessel to corresponding offshore locations.
- Another aspect of initially having the supported blade portion more elevated than the root portion of the third blade is that, when the third blade is arranged overhanging the deck, negative effects of the surf on the third blade may be avoided or attenuated, and transportation restrictions may be reduced or avoided.
- Non-limiting examples of the present disclosure will be described in the following, with reference to the appended drawings, in which:
-
Figures 1a - 1c schematically illustrate a hoisting system and a method of mounting a hub on top of a tower by using said hoisting system, according to an example. -
Figures 2a - 2c schematically illustrate a hoisting system and a method of mounting a hub on top of a tower by using said hoisting system, according to a further example. -
Figures 3a - 3b schematically illustrate a hoisting system and a method of mounting a hub on top of a tower by using said hoisting system, according to a still further example. -
Figures 4a - 4b schematically illustrate a slight variant of the system and method ofFigures 3a - 3b . -
Figure 5 schematically illustrates a hoisting system for mounting a hub on top of a tower, according to a yet further example. -
Figures 6a - 6d schematically illustrate a hoisting system and a method of mounting a hub on top of a tower by using said hoisting system, according to an additional example. -
Figures 1a - 1c show a hoisting system configured to mount anacelle 107 andhub 108 on top of a tower to form a wind turbine, according to an example. Thehub 108 is shown carrying afirst blade 103 and asecond blade 104 forming a bunny ears configuration, and athird blade 105. The hoisting system may comprise afirst crane 100 with acable 102 for pulling up thenacelle 107 andhub 108 from aground level 114 to the top of the tower. In the case of offshore wind turbines, the ground level may be adeck level 114 of a vessel for transporting wind turbine parts to corresponding offshore locations. - The hoisting system may further comprise a blade support and a hub-blade coupling device. The blade support may comprise a second (or auxiliary)
crane 101. The hub-blade coupling device may be configured to assist in coupling aroot portion 115 of thethird blade 105 to acoupling portion 116 of thehub 108. The hub-blade coupling device may comprise ahub mount structure 109, ablade mount structure 110, and ahinge 118. - The
hub mount structure 109 may be configured to be removably fixed to thehub 108. Theblade mount structure 110 may be configured to be removably fixed to thethird blade 105 at or near theroot portion 115 of thethird blade 105. Thehinge 118 may be configured to rotatably connect or couple thehub mount structure 109 and theblade mount structure 110. - The
second crane 101 may have acable 106 configured to hold up thethird blade 105 at ablade portion 117 through e.g. asling 111. Thefirst crane 100 and thesecond crane 101 may cooperate in such a way that an additional movement of thethird blade 105 is caused during at least part of or after the pulling up of thenacelle 107 andhub 108. Said additional movement of thethird blade 105 may be such that adifference 121 between height 119' of theroot portion 115 and height 120' of theblade portion 117 held by thesling 111 is increased (seeFigure 1c ). Said additional movement of thethird blade 105 may therefore cause rotation of theblade mount structure 110 around thehinge 118, i.e. with respect to thehub mount structure 109. And said rotation may cause thethird blade 105 to move towards a substantially vertical position in which theroot portion 115 of thethird blade 105 and thecoupling portion 116 of thehub 108 are facing each other. - As shown in
Figure 1a , a hub structure to be hoisted (constituted bynacelle 107,hub 108, blades 103 - 105, hub-blade coupling device, etc.) may be initially formed with thenacelle 107 arranged on a pedestal 113 (or similar) and with thethird blade 105 lying on the deck (or ground)level 114. Then, thefirst crane 100 and thesecond crane 101 may cooperate to elevate the hub structure (to be hoisted) to a position as the one shown inFigure 1b , in whichheight 119 of theroot portion 115 andheight 120 of theblade portion 117 held by thesling 111 may substantially coincide. - Afterwards, the second (or auxiliary)
crane 101 may be operated to lower thethird blade 105 at the blade portion 117 (held by the sling 111) in such a way that adifference 121 between height 119' of theroot portion 115 and height 120' of theblade portion 117 increases, as shown inFigure 1c . In alternative examples, thesecond crane 101 may simply hold up thethird blade 105 at the blade portion 117 (held by the sling 111) at afixed height 120 while thefirst crane 100 pulls up the hub structure (to be hoisted), such that the same effect (increasingdifference 121 of heights) is obtained. - Pulling up of the hub structure (to be hoisted) by the
first crane 100 may comprise a horizontal component in such a way that, as shown inFigure 1c , the hub structure is approached towards thesecond crane 101. This way, movement of thethird blade 105 towards its target vertical arrangement is facilitated. - When the
third blade 105 has reached a maximum inclination depending on the configuration of thecranes third blade 105 may be released from thesecond crane 101 in such a way that thethird blade 105 may move (or fall) by gravity to the pursued vertical position. The hub-blade coupling device may be configured to avoid said fall of thethird blade 105. - For example, the hub-blade coupling device may further comprise an auxiliary drive system aimed at controlling the movement of the
third blade 105 from the maximum inclination position to the vertical position. This drive system may comprise e.g. one ormore cables 112 configured to connect thehub mount structure 109 and theblade mount structure 110, and a cable regulator system configured to control the length of the one ormore cables 112. Damages on theblade 105 due to its movement towards the vertical position may be avoided with such a drive system. - Alternatively or additionally to having said auxiliary drive system, the
second crane 101 may be configured to drop itscable 106 in a controlled manner when thenacelle 107 andhub 108 are at a certain height. Said dropping of thecable 106 may be performed in such a way that careful movement of thethird blade 105 towards its vertical position can be achieved. -
Figures 2a - 2c show a hoisting system configured to mount anacelle 107 andhub 108 on top of a tower to form a wind turbine, according to a further example. This hoisting system is similar to the one described before. One difference is that this hoisting system comprises atensor system 200 instead of a second (or auxiliary)crane 101. Thistensor system 200 may comprise acable 201 with asling 111 and a cable regulator (not shown). - The
cable 201 may be configured to connect in a tensed manner thehub mount structure 109 with ablade portion 117 of thethird blade 105 held by thesling 111, such that thethird blade 105 is held up at thisblade portion 117 by the tensedcable 201. The cable regulator may be configured to extend the tensedcable 201 in such a way that the blade portion 117 (held by the sling 111) is lowered during at least part of or after the pulling up of thenacelle 107 andhub 108. - This lowering of the
third blade 105 at the blade portion 117 (held by the sling 111) may cause the pursued additional movement of thethird blade 105 towards its vertical position. -
Figure 2a shows a hub structure to be hoisted (constituted bynacelle 107,hub 108, blades 103 - 105, hub-blade coupling device, etc.) in an initial position equal or similar to the one shown inFigure 1a , i.e. with thethird blade 105 lying on thedeck level 114. -
Figure 2b shows said hub structure elevated (by the first crane 100) such that theroot portion 115 of thethird blade 105 is at aheight 203 fromdeck level 114. Thethird blade 105 is shown lowered (by the tensor system 200) at theblade portion 117 held by thesling 111 such that thisblade portion 117 is at aheight 204 from thedeck level 114. Adifference 205 betweenheight 203 andheight 204 is also indicated inFigure 2b . -
Figure 2c shows thenacelle 107 andhub 108 more elevated than in previous figure, and thethird blade 105 more lowered at the blade portion 117 (held by the sling 111) than in previous figure. Therefore, difference 205' between height 203' of theroot portion 115 and height 204' of theblade portion 117 held by thesling 111 is shown (inFigure 2c ) larger thandifference 205 betweenheight 203 of theroot portion 115 andheight 204 of this blade portion 117 (inFigure 2b ). - Further transitions as the ones illustrated between
Figures 2a and 2b and2c may be performed, by elevating (by the first crane 100) thenacelle 107 andhub 108 and lowering (by the tensor system 200) thethird blade 105 at the supportingportion 117 held by thesling 111, until thethird blade 105 reaches the target vertical position. - The hoisting system of
Figures 2a - 2c could further comprise a drive system with corresponding cable(s) 112 and cable(s) regulator, such as e.g. the one previously described with reference toFigures 1a - 1 c. This drive system may cooperate with thefirst crane 100 andtensor system 200 for moving thethird blade 105 towards the target vertical position. - The
sling 111 may be made of a material with a suitable balance between softness and strength, such as e.g. suitable types of rubber or similar material, or a polymer-based textile. For example, blade support slings made of nylon/polyester may be used for that purpose. This way, thethird blade 105 may be held up at ablade portion 117 with theblade 105 suspended in a relatively strong and careful manner at the same time. - In the above examples of
Figures 1a - 2c , in which thethird blade 105 is held up by acable sling 111, thesling 111 may be positioned at a distance from theroot portion 115 of thethird blade 105 substantially equal to 2/3 of the length L of thethird blade 105. - Alternatively or additionally to having the
second crane 101 or thetensor system 200, the blade support may comprise a pivoting support system, such as e.g. the one illustrated inFigures 3a - 3b . Thisblade support 308 may comprise asupport base 303 configured to be arranged directly on the deck (or ground)level 114 or on a pedestal 301 (or similar) arranged on thedeck level 114. This way, thethird blade 105 may be supported at ablade portion 117 in a pivoting manner. - This
support base 303 may thus be arranged in such a way that pivoting of thethird blade 105 on thesupport base 303 may be caused during at least part of the pulling up of thenacelle 107 andhub 108. In particular, thethird blade 105 may pivot on thesupport base 303 in such a way that the pursued additional movement of the third blade 105 (towards vertical position) is caused. - According to some examples, this pivoting
support system 308 may further comprise asupport platform 302 pivotally arranged on thesupport base 303 in such a way that thethird blade 105 and thesupport platform 302 jointly pivot on thesupport base 303 during at least part of the pulling up of thenacelle 107 andhub 108. Said joint pivoting may occur in such a way that the intended additional movement of the third blade 105 (towards vertical position) is caused. - As shown in
Figure 3a , a hub structure to be hoisted (constituted bynacelle 107,hub 108, blades 103 - 105, hub-blade coupling device, etc.) may be initially formed with thenacelle 107 arranged on a pedestal 300 (or similar).Pedestals third blade 105 may be arranged withblade portion 117 lying on thesupport platform 302, so that thethird blade 105 is suitably arranged, e.g. substantially parallel to deck (or ground)level 114. - In
Figure 3a , the hub structure (to be mounted on top of the tower) is shown with thethird blade 105 arranged lengthwise of thevessel 309. - Once the hub structure (to be hoisted) has been formed, the
first crane 100 may initiate the pulling up of the hub structure in such a way that thethird blade 105 and thesupport platform 302 jointly pivot on thesupport base 303, as shown inFigure 3b . This joint pivoting may occur in a manner that an increasingdifference 305 is caused betweenheight 306 of theroot portion 115 andheight 307 of theblade portion 117 that is supported on thesupport platform 302. - The
first crane 100 may be configured to pull up the formed hub structure while moving it towards a position substantially on the vertical of thesupport system 308. This way, the additional movement of the third blade 105 (towards its vertical arrangement) may be performed with thethird blade 105 always supported on thesupport system 308 until the vertical position is achieved. Hence, movement (or fall) by gravity of thethird blade 105 may be avoided in this case. - Alternatively or additionally to having the
first crane 100 configured to move thenacelle 107 andhub 108 towards a position substantially on the vertical of thesupport system 308, the hoisting system may further comprise an auxiliary drive system. Said auxiliary drive system may have corresponding cable(s) 112 and cable(s) regulator, such as e.g. the one described with reference toFigures 1a - 1c , aimed at controlling the movement of thethird blade 105 towards its vertical position. Damages on theblade 105 may thus be avoided with this drive system. -
Figures 4a - 4b show similar views to those ofFigures 3a - 3b . One difference is that the hub structure (to be mounted on top of the tower) is shown inFigures 4a - 4b arranged on thedeck level 114 widthwise of thevessel 309. This widthwise arrangement may permit optimizing the space available on thedeck 114, such that a larger amount of hub structures (to be mounted on top of a tower) may be transported on thevessel 309. - Arranging a hub structure (to be mounted on top of the tower) widthwise of the
vessel 309 may cause thethird blade 105 to overhang thedeck 114 as shown inFigures 4a - 4b . This overhanging of thethird blade 105 may permit having ablade support 308 lower than in other configurations in which thethird blade 105 does not overhang thedeck 114. Therefore, the pedestal 301 (or similar piece) ofFigures 3a - 3b may not be required in this case. -
Figure 5 schematically illustrates a hub structure to be hoisted (constituted bynacelle 107,hub 108, blades 103 - 105, hub-blade coupling device, etc.) by using a hoisting system according to a still further example. This hoisting system is similar to the ones shown inFigures 3a - 4b . One difference is that theblade support 308 is sized in such a way that, when the hub structure (to be hoisted) is ondeck level 114, thethird blade 105 is supported by theblade support 308 with thethird blade 105 inclined. This inclination may be such that theblade portion 117 of thethird blade 105 that is supported on theblade support 308 is positioned more elevated than theroot portion 115 of thethird blade 105. - Having the
third blade 105 inclined as shown inFigure 5 may permit optimizing the space on thedeck 114, so that larger quantities of hub structures (to be mounted on top of a tower) may be transported on thevessel 309. Another aspect is that negative effects of the surf on thethird blade 105 may be avoided or attenuated when thethird blade 105 overhangs thedeck 114 because e.g. the hub structure (to be hoisted) is arranged widthwise of thevessel 309, as shown inFigures 4a - 4b . - In any of the previously described examples with reference to
Figures 3a - 5 , the hoisting system may further comprise ablade protector 304. Theblade protector 304 may be configured to cover theblade portion 117 in such a way that thethird blade 105 is supported on theblade support 308 at saidblade portion 117 with at least part of theblade protector 304 stuck between thethird blade 105 and theblade support 308. - The
blade protector 304 may be made of a material with suitable balance between softness and strength, such as e.g. suitable types of rubber or similar material. This way, thethird blade 105 may be supported at theblade portion 117 with theblade 105 relatively strongly protected and retained at the same time. - In any of the previous examples of
Figures 3a - 5 , theblade portion 117 at which thethird blade 105 is supported may extend to a greater or lesser extent at both sides of a blade region which is at a distance from theroot portion 115 substantially equal to 2/3 of the length L of thethird blade 105. -
Figures 6a - 6d schematically illustrate a hoisting system and a method of mounting anacelle 107 andhub 108 on top of a tower by using said hoisting system, according to another example. In this case, the blade support may comprise ablade protector member 600, aplatform member 601 and a rollingmember 602. Theblade protector member 600 may be configured to cover at least part of theblade portion 603 at which thethird blade 105 is supported. - The
platform member 601 may be attached to theblade protector member 600 in such a way that theplatform member 601 extends substantially parallel to alongitudinal axis 604 of thethird blade 105 at least between theblade protector member 600 and a blade tip of thethird blade 105. - The rolling
member 602 may be configured in such a way that its rolling is caused along theplatform member 601 during at least part of the pulling up of thenacelle 107 and hub 108 (by the first crane 100). The rollingmember 602 may thus roll between thedeck 114 and theplatform member 601 in such a way that the additional movement of thethird blade 105 towards its vertical position is caused. - Once a hub structure to be hoisted (constituted by
nacelle 107,hub 108, hub-blade coupling device, etc.) has been initially formed as depicted inFigure 6a , thefirst crane 100 may initiate the pulling up of the formed hub structure. This pulling up may be performed in such a manner that the rollingmember 602 rolls between thedeck 114 and theplatform member 601 such that a motion sequence as the one illustrated fromFigure 6b to Figure 6d may be caused. - In this motion sequence (from
Figure 6b to Figure 6d ), the rolling of the rollingmember 602 may occur in such a manner that an increasingdifference 605 betweenheight 606 of theroot portion 115 andheight 607 of theblade portion 603 is caused. The hoisting system ofFigures 6a - 6d may be configured in such a way that pulling up of the hub structure by thefirst crane 100 may comprise a horizontal component in such a way that, as shown inFigures 6b - 6d , the hub structure is hoisted with thethird blade 105 always supported on the rollingmember 602 until its vertical arrangement is achieved. This way, movement (or fall) by gravity of thethird blade 105 may be avoided. - Alternatively or additionally to the above manner of hoisting the formed hub structure with the
third blade 105 always supported on the rollingmember 602, an auxiliary drive system may be used. This drive system may comprise corresponding cable(s) 112 and cable(s) regulator, such as e.g. the one described in previous figures, aimed at controlling the movement of thethird blade 105 towards its vertical position. Damages on theblade 105 may thus be avoided with this drive system, in cooperation or not with the above manner of causing theblade 105 to achieve its vertical position with theblade 105 always supported on theroller member 602. - In the example of
Figures 6a - 6d , theblade portion 603 at which thethird blade 105 is supported may extend from 2/3 of the length L of thethird blade 105 to at or near the blade tip. - In the previous examples described with reference to
Figures 1a - 6d , thehub 108 is shown initially attached to anacelle 107 and both (nacelle 107 and hub 108) are pulled up as a single body by thefirst crane 100 to the top of the tower. In alternative examples, only thehub 108 may be pulled up by thefirst crane 100 for its coupling with a nacelle which may have been previously mounted on top of the tower. - In any of the previously described examples (of
Figures 1a - 6d ), theblade mount structure 110 may comprise a lift system for pulling up thethird blade 105 once thethird blade 105 has reached the substantially vertical position. This way, coupling of theroot portion 115 of thethird blade 105 with thecoupling portion 116 of thehub 108 may be caused. The lift system may be a telescopic system and/or may be based on one or more hydraulic pistons aimed at that end, for example. In alternative configurations, the lift system may be comprised in thehub mount structure 109. Further alternatively, neither theblade mount structure 110 nor thehub mount structure 109 may comprise such a lift system, in which case an external lift system may be used instead. - Once the coupling of the
root portion 115 of thethird blade 105 with thecoupling portion 116 of thehub 108 has been performed, theroot portion 115 of thethird blade 105 can be fixed to thecoupling portion 116 of thehub 108 by using suitable fastening means, such as e.g. screws, bolts, etc. - Although only a number of examples have been disclosed herein, other alternatives, modifications, uses and/or equivalents thereof are possible. In particular, even though the presently described examples are aimed at offshore applications, the same methods and systems may be used in and on wind turbine mounted on shore as well.
- Furthermore, all possible combinations of the described examples are also covered. Thus, the scope of the present disclosure should not be limited by particular examples, but should be determined only by a fair reading of the claims that follow.
Claims (15)
- A hoisting system configured to mount a hub on top of a tower to form a wind turbine, the hub carrying a first blade and a second blade forming a bunny ears configuration and a third blade, the system comprising
a first crane configured to pull up the hub from a ground level to the top of the tower;
a blade support configured to support the third blade at a supported blade portion; and
a hub-blade coupling device configured to assist in coupling a root portion of the third blade to a coupling portion of the hub, the hub-blade coupling device comprising
a hub mount structure configured to be removably fixed to the hub;
a blade mount structure configured to be removably fixed to the third blade at or near the root portion of the third blade;
a connector rotatably coupling the hub mount structure and the blade mount structure. - A hoisting system according to claim 1, wherein the blade support comprises a second crane with a cable configured to hold up the third blade at the supported blade portion.
- A hoisting system according to any of claims 1 or 2, wherein the blade support comprises a tensor system having a cable and a cable regulator; wherein
the cable is configured to connect the hub mount structure with the supported blade portion of the third blade in such a way that, in use, the third blade is held up at the supported blade portion by the cable; and wherein
the cable regulator is configured to control the length of the cable. - A hoisting system according to any of the preceding claims, wherein the blade support comprises a support base configured to be arranged on the ground level to support the third blade at the supported blade portion in such a way that, in use,
cooperation of the first crane and the blade support causes pivoting of the third blade on the support base during at least part of the pulling up of the hub. - A hoisting system according to claim 4, wherein the blade support further comprises a support platform pivotally arranged on the support base and configured to support the third blade at the supported blade portion in such a way that, in use,
cooperation of the first crane and the blade support causes joint pivoting of the third blade and the support platform on the support base during at least part of the pulling up of the hub. - A hoisting system according to any of claims 4 or 5, wherein the blade support is sized in such a way that, in use, when the hub is at the ground level, the third blade is supported by the blade support with the supported blade portion of the third blade substantially more elevated than the root portion of the third blade.
- A hoisting system according to any of claims 1 to 3, wherein the blade support comprises a blade protector member, a platform member and a rolling member; wherein
the blade protector member is configured to cover at least part of the supported blade portion of the third blade; wherein
the platform member is attached to the blade protector member in such a way that, in use, the platform member extends substantially parallel to a longitudinal axis of the third blade at least between the blade protector member and a blade tip; and wherein
the rolling member is configured in such a way that, in use, cooperation of the first crane and the blade support causes rolling of the rolling member at least partially along the platform member during at least part of the pulling up of the hub. - A hoisting system according to any of the preceding claims, further comprising a drive system having one or more cables configured to connect the hub mount structure and the blade mount structure, and a cable regulator system configured to control the length of the one or more cables.
- A hoisting system according to any of the preceding claims, wherein the supported blade portion of the third blade comprises a blade region which is at a distance from the root portion of the third blade substantially equal to 2/3 of the length of the third blade.
- A hoisting system according to any of the preceding claims, wherein the hub is attached to a nacelle; and wherein the first crane is configured to pull up both the nacelle and hub as a single body.
- A hoisting system according to any of the preceding claims, wherein the hub-blade coupling device further comprises a lift system configured to pull up the third blade once, in use, the third blade has reached the substantially vertical position.
- A method of mounting a hub on top of a tower to form a wind turbine, by using a hoisting system according to any of claims 1 to 10; wherein
the hub carries a first blade and a second blade forming a bunny ears configuration and a third blade; and wherein
the method comprises
fixing the hub mount structure of the hoisting system to the hub;
fixing the blade mount structure of the hoisting system to the third blade at or near a root portion of the third blade;
operating the first crane of the hoisting system to pull up the hub from a ground level to the top of the tower, with the blade support of the hoisting system supporting the third blade at a supported blade portion of the third blade, such that
the first crane and the blade support cooperate to cause an additional movement of the third blade during at least part of or after the pulling up of the hub, in such a way that a difference between height of the root portion and height of the supported blade portion is increased,
said additional movement causing rotation of the blade mount structure with respect to the hub mount structure, and
said rotation causing movement of the third blade towards a substantially vertical position in which the root portion of the third blade and the coupling portion of the hub are facing each other. - A method according to claim 12, further comprising
operating the blade support for lowering the third blade at the supported blade portion in such a way that the additional movement of the third blade towards its vertical position is caused. - A method according to claim 13, wherein operating the blade support is performed once operating the first crane has been completed.
- A method according to any of claims 12 to 14, wherein the hoisting system further comprises a lift system configured to pull up the third blade; and wherein
the method further comprises
operating the lift system to pull up the third blade once the third blade has reached the substantially vertical position, such that coupling of the root portion of the third blade to the coupling portion of the hub is caused; and
fixing the root portion of the third blade to the coupling portion of the hub.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15382130.1A EP3070044B1 (en) | 2015-03-19 | 2015-03-19 | Hoisting systems and methods |
US15/072,410 US10156223B2 (en) | 2015-03-19 | 2016-03-17 | Hoisting systems and methods |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15382130.1A EP3070044B1 (en) | 2015-03-19 | 2015-03-19 | Hoisting systems and methods |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3070044A1 true EP3070044A1 (en) | 2016-09-21 |
EP3070044B1 EP3070044B1 (en) | 2018-08-08 |
Family
ID=52823571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15382130.1A Active EP3070044B1 (en) | 2015-03-19 | 2015-03-19 | Hoisting systems and methods |
Country Status (2)
Country | Link |
---|---|
US (1) | US10156223B2 (en) |
EP (1) | EP3070044B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109969929A (en) * | 2019-04-04 | 2019-07-05 | 明阳智慧能源集团股份公司 | A kind of omnipotent tail portion suspender of wind-power tower lifting |
CN109989889A (en) * | 2017-12-22 | 2019-07-09 | 通用电气公司 | For the lift part of wind turbine, external member and method |
CN116425029A (en) * | 2023-04-10 | 2023-07-14 | 江苏大烨新能源科技有限公司 | Single-hook turning tool and turning method |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106415005B (en) * | 2014-04-30 | 2020-10-30 | 温德凯尔印度私人有限公司 | Method and system for dismounting and remounting wind turbine blade |
NL1042325B1 (en) | 2017-04-03 | 2018-10-11 | Lagerwey Wind B V | Hoisting System for Installing a Wind Turbine |
CN110506161A (en) * | 2017-04-18 | 2019-11-26 | 西门子歌美飒可再生能源公司 | Method for mounting a component of a wind turbine |
GB2561612B (en) * | 2017-04-21 | 2019-10-16 | Sense Wind Ltd | Method for assembling a wind turbine and a wind turbine system |
TWI786427B (en) * | 2019-08-19 | 2022-12-11 | 許金城 | Wind turbine full-set installation system and offshore mast-pulling platform ship |
EP3786448A1 (en) * | 2019-08-29 | 2021-03-03 | General Electric Company | Method of mounting a nacelle of a wind turbine and assembling set of parts of a wind turbine |
US11118574B2 (en) * | 2019-11-19 | 2021-09-14 | General Electric Company | Method for installing a jointed rotor blade of a wind turbine |
RU2770239C1 (en) * | 2020-11-30 | 2022-04-14 | Общество с ограниченной ответственностью «Яндекс Беспилотные Технологии» | Method and system for determining the trajectory of a vehicle through a blind spot |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070266538A1 (en) * | 2004-07-30 | 2007-11-22 | Vestas Wind Systems A/S | Methods of handling wind turbine blades and mounting said blades on a wind turbine, system and gripping unit for handling a wind turbine blade |
WO2009041812A1 (en) * | 2007-09-27 | 2009-04-02 | Gusto B.V. | Method and structure for lifting and attaching a composite structure to a vertical support |
WO2009068038A1 (en) * | 2007-11-29 | 2009-06-04 | Vestas Wind Systems A/S | Method for establishing a wind turbine on a site, transport of a wind turbine tower, wind turbine tower and vessel suitable for transporting a wind turbine tower |
EP2128431A2 (en) * | 2008-05-07 | 2009-12-02 | Mario Berg | Method and device for mounting a module-type structure such as a wind energy plant |
US20130223964A1 (en) * | 2012-02-27 | 2013-08-29 | General Electric Company | Tower-based platform system for lifting components atop a wind turbine tower |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2206014B1 (en) * | 2002-03-26 | 2005-07-16 | Manuel Torres Martinez | CRANE FOR ASSEMBLY OF AIRBRUSHERS AND ASSEMBLY PROCESS. |
US8069634B2 (en) * | 2006-10-02 | 2011-12-06 | General Electric Company | Lifting system and apparatus for constructing and enclosing wind turbine towers |
EP1925582B1 (en) * | 2006-11-23 | 2010-06-23 | Siemens Aktiengesellschaft | Method and a device for mounting of wind turbine blades |
US8250759B2 (en) * | 2008-02-07 | 2012-08-28 | Deese Kenneth A | Rotor hub maintenance system |
US20100139062A1 (en) * | 2009-02-25 | 2010-06-10 | General Electric Company | Lowering and raising a single wind turbine rotor blade from six-o'clock position |
NL2007504C2 (en) * | 2011-09-29 | 2013-04-02 | Seaway Heavy Lifting Engineering B V | Wind turbine installation method and wind turbine assembly suitable for use in said method. |
EP2672106B1 (en) * | 2012-06-04 | 2020-08-12 | Nordex Energy Spain, S.A.U. | System and method for assembling and disassembling components from a wind power turbine |
WO2014125461A1 (en) * | 2013-02-18 | 2014-08-21 | High Wind N.V. | Device and method for placing a rotor blade of a wind turbine |
US10113530B2 (en) * | 2014-02-20 | 2018-10-30 | General Electric Company | Methods and systems for removing and/or installing wind turbine rotor blades |
US9638163B2 (en) * | 2014-02-20 | 2017-05-02 | General Electric Company | Methods and systems for removing and/or installing wind turbine rotor blades |
US9651021B2 (en) * | 2014-09-09 | 2017-05-16 | General Electric Company | System and method for removing and/or installing a rotor blade of a wind turbine |
US20180195497A1 (en) * | 2017-05-30 | 2018-07-12 | General Electric Company | Handling device for a wind turbine rotor blade having a moldable support pad |
-
2015
- 2015-03-19 EP EP15382130.1A patent/EP3070044B1/en active Active
-
2016
- 2016-03-17 US US15/072,410 patent/US10156223B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070266538A1 (en) * | 2004-07-30 | 2007-11-22 | Vestas Wind Systems A/S | Methods of handling wind turbine blades and mounting said blades on a wind turbine, system and gripping unit for handling a wind turbine blade |
WO2009041812A1 (en) * | 2007-09-27 | 2009-04-02 | Gusto B.V. | Method and structure for lifting and attaching a composite structure to a vertical support |
WO2009068038A1 (en) * | 2007-11-29 | 2009-06-04 | Vestas Wind Systems A/S | Method for establishing a wind turbine on a site, transport of a wind turbine tower, wind turbine tower and vessel suitable for transporting a wind turbine tower |
EP2128431A2 (en) * | 2008-05-07 | 2009-12-02 | Mario Berg | Method and device for mounting a module-type structure such as a wind energy plant |
US20130223964A1 (en) * | 2012-02-27 | 2013-08-29 | General Electric Company | Tower-based platform system for lifting components atop a wind turbine tower |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109989889A (en) * | 2017-12-22 | 2019-07-09 | 通用电气公司 | For the lift part of wind turbine, external member and method |
CN109989889B (en) * | 2017-12-22 | 2023-09-01 | 通用电气公司 | Lift fitting, kit and method for a wind turbine |
CN109969929A (en) * | 2019-04-04 | 2019-07-05 | 明阳智慧能源集团股份公司 | A kind of omnipotent tail portion suspender of wind-power tower lifting |
CN109969929B (en) * | 2019-04-04 | 2024-03-15 | 明阳智慧能源集团股份公司 | Universal tail lifting appliance for lifting wind power tower |
CN116425029A (en) * | 2023-04-10 | 2023-07-14 | 江苏大烨新能源科技有限公司 | Single-hook turning tool and turning method |
CN116425029B (en) * | 2023-04-10 | 2023-11-28 | 江苏大烨新能源科技有限公司 | Single-hook turning tool and turning method |
Also Published As
Publication number | Publication date |
---|---|
US20160273515A1 (en) | 2016-09-22 |
EP3070044B1 (en) | 2018-08-08 |
US10156223B2 (en) | 2018-12-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3070044B1 (en) | Hoisting systems and methods | |
EP3356280B1 (en) | Hoisting system for installing a wind turbine | |
US8596614B2 (en) | Method for hoisting and lowering device in rotor head of wind turbine generator | |
EP2520792B2 (en) | Hoist system and method of providing a hoist system | |
EP2275340B1 (en) | Offshore wind turbine installation | |
AU2018254830B2 (en) | A wind turbine system | |
WO2013051167A1 (en) | Blade attaching and detaching device and method for wind turbine generator | |
US20120027523A1 (en) | Device and method for assembling a structure at sea | |
WO2009041812A1 (en) | Method and structure for lifting and attaching a composite structure to a vertical support | |
EP2256079B1 (en) | Device for assembling a large structure at sea | |
EP3260409A1 (en) | Method of assembling a wind turbine | |
US20160369778A1 (en) | Method of assembling a wind turbine | |
JP2023552909A (en) | How to assemble a floating offshore wind farm | |
EP2532879B1 (en) | Assembly and/or maintenance of a wind turbine | |
CN109072866B (en) | Method of lifting components of a multi-rotor wind turbine | |
GB2577643A (en) | Method for assembling a wind turbine and a wind turbine system | |
US20230287869A1 (en) | Offshore wind turbine systems and processes for installing same | |
EP3875753A1 (en) | A wind turbine blade installation method | |
WO2021121492A1 (en) | A method for installing or removing wind turbine components |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20170321 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: B66C 1/62 20060101AFI20180202BHEP Ipc: F03D 13/10 20160101ALI20180202BHEP Ipc: F03D 1/00 20060101ALI20180202BHEP Ipc: F03D 13/00 20160101ALI20180202BHEP Ipc: F03D 13/40 20160101ALI20180202BHEP Ipc: B66C 23/18 20060101ALI20180202BHEP |
|
INTG | Intention to grant announced |
Effective date: 20180221 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 1026727 Country of ref document: AT Kind code of ref document: T Effective date: 20180815 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602015014604 Country of ref document: DE |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: GE RENEWABLE TECHNOLOGIES WIND B.V. |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20180808 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1026727 Country of ref document: AT Kind code of ref document: T Effective date: 20180808 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181109 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181108 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181208 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181108 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602015014604 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20190509 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190319 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20190331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190319 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190331 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190331 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190319 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181208 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20150319 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180808 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230529 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240220 Year of fee payment: 10 Ref country code: GB Payment date: 20240220 Year of fee payment: 10 |